Lock



E. B. STONE.

LOCK.'

APPLICATION HLED DEC. 16.

Patented July 25, 1922.

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ELMER B. STONE, O1 KEV] BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICAN HARDWARE CORPORATION, OF NEW BRITAIN,

OF CONNECTICUT.

CONNECTICUT, A. CORPORATION LOOK.

ineaoac,

Application filed December 16, 1921.

To all whom it maycon'cern Be it known that I, ELMER B. STONE, a citizen of the United States, residing in New Britain, in the county of Hartford and State of Connecticut, have invented new and Improved Locks, of which the following is a specification.

My invention relates to that class of locks comprising a yoke or shackle that is secured in locked position by means of the lock mechanism, such invention relating more especially to such class of locks in which the yoke or shackle projects entirely through the lock case, and an object of my invention, among others, is to provide a lock of this latter type, in which the key for operating the locking mechanism may be in a con venient and accessible position.

One form of lock embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawings, in which Figure 1 is a face view of my improved lock. I

Figure 2 is a an edge view of the same.

Figure 3 is a view similar to Figure 1 with a portion of the case removed and showing the lock mechanism.

Figure 4 is a detail view illustrating a little difierent manner of engagement of the locking bolt with the shackle.

My invention has particularly to do with a lock having a long yoke or shackle as compared with other types of locks, whichlong shackle is of advantage in securing automobiles so that they may not be moved. In prior locks of this type the keyhole'has been so located with respect to the arms of the shackle as to make manipulation of the key awkward and dlfiicult. My improved lock does away with these objectionable features and is so constructed that the arms of the shackle do not interfere with the operation of the key, such look as herein illustrated, including a case comprising a stem portion 5 and a cross portion 6 located at the end of the stem portion, the projecting ends of the cross portion constituting wings 7 having openings 8 extending therethrough to receive arms 9 of the shackle. This shackle is in the form of a yoke including a bend 10, the opposite end being open, that is the arms are separated and extend in substantially parallel relation one with respect to another.

Specification of Letters Patent.

PatenteolJuly 25, 1922.

Serial No. 522,738.

Notches 11 are formed on the arms, preferably facing each other, these notchesbeing adapted to receive the ends 12 of locking bolts 13 constituting a part of the lock mechanism.

in important feature of my invention resides in such formation of the lock case thatthe stem 5 is located at an angle to the cross portion 6 and the wings 7. The key hole 14 is formed in the end of the stem 5, the angular relation of which with respect to the cross portion, and consequently with respect to the arms 9 of the shackle that projects through the wings 7, causes the key to be located outside of the space between the arms, and asillustrated in Figure 2 of the drawings, wherebythe arms do not interfere with the free turning movement of the key to operate the lock mechanism.

This mechanism is located principally in the stem 5 and may be of various forms and construction. That herein illustrated is found to satisfactorily serve the purpose and comprises a collar 15 having the key slot I 14 shaped to permit'insertion of a key of d between the bar 20 and the end of the case,

and as illustrated in Figure 3 of the drawings, a recess 24: in the wall of the chamber 22 being formed to receive the end of the key and comprising a support therefor in its operation.

The bodies of the bolts 13 are formed and located so that their fiat sides directly face the key opening into the end of the stem, Such flat sides consequently being at an oblique angle to a plane passing centrally in a longitudinal direction along the arms 9. These bolts have shouldered openings through which the key passes, the shoulders being adapted to receive the wards on the key in a manner common to look structures and as will be readily understood by those skilled in the art, the contact ofthe wards with these shoulders, when the key is turned,

causing the bolts to be thrown backwardly and out of contact with the notches in the arms of the shackle. Springs 25 are employed to hold the bolts in a position with the ends 12 normally engaged with the notches in the shackle arms.

The notches 11 in the shackle arms are on their axes. This provides that the flat faces of the ends will squarely engage the shoulders of the recesses in the shackle arms, which shoulders are angularly disposed with respect to the axis of the key when the latter is in position in the lock and consequent y I with respect to the lock mechanism that conforms to the position of the key. It will be understood that this angular formation of the ends of the bolts may be obtained-in various ways, depending upon the manner in which the bolts are made.

In that form of the device as illustrated in Figure at of the drawing, the ends of the locking bolts 26 are in the same plane as the bodies of said'bolts, that is, said ends are not twisted as in the forms hereinbefore described, and the recesses 27 in the shackle arms are inclined to receive the ends of said bolts.

In accordance with the provisions of the patent statutes I have described the principles of operation of my invention, together with the device which I new consider to represent the best embodiment thereof; but I desire to have it understood that the device shown is only illustrative, and that the invention may be carried out by other means.

I claim 1. A lock including a case having an opening therein, a shackle comprising arms projecting from said opening, said case having a key opening with its lengthwise center projecting at an oblique angle to said shackle, and mechanism within said case and including a member to engage and hold said shackle.

2. A look case including a portion with an opening for a shackle and another portion located at an oblique angle to the first mentioned portion and having a key opening arranged at an oblique angle to said shackle opening, a shackle comprising an arm projecting from said opening, and mechanism within said case to be operated by a key within said key opening, said mechanism including a member to engage and hold said shackle arm.

3. A lock case including a stem member and a cross member providing wings on opposite sides of said case, said members being located at an oblique angle each to the other, a shackle comprising arms extending through the wings on opposite sides of said stem, mechanism located in said stem to be operated by a key positioned at an oblique angle to said. shackle arms, and members included in said mechanism and adapted to engage and hold said shackle arms.

at. A lock comprising a case with a shackle opening therein, a shackle extending from said opening, and comprising arms having notches with locking shoulders, lock mechanism located in said case and arranged in a plane oblique to the plane of said arms, said mechanism including a bolt, and said bolt and shoulder being arranged to squarely engage each other.

5. A. lock comprising a case with shackle openings extending thcrethrough near opposite edges thereof, a shackle comprisin arms projecting from said openings and having square locking shoulders, lock mechanism including key receiving means to locate a key with its axis at an oblique angleto a plane passing centrally through said shackle openings, said lock mechanism also including a bolt with its end twisted at an angle to the plane of movement of said bolt to squarely engage with said shoulders.

6. A lock including a case, a shackle projecting from said case and including a pair of arms, mechanism within the case, and means to permit insertion of a key at an oblique angle to the plane of said arms.

ELMER B. STONE. 

